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Old 08-27-2010, 12:55 PM   #1
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Knocking Noise

I picked my 01 4.0 auto about a 3 weeks ago. Had noticed a slight ticking noise, but figured these make a lot of noise anyway Last few days, got louder, around transmission, even just at idle. I have a backyard mechanic, that just crawled under there and removed a small plate at said he thought the flywheel make be cracked Then had me turn it over a few times and thought make timing chain had too much play. But still thinks most of what he's hearing is at flywheel. I'm no mechanic, any help on which to do first? Or what else to check? I hate buying stuff and then having to fix it

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Old 08-27-2010, 05:16 PM   #2
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C'mon, where's all you gearheads. I really don't want to go into a transmission shop blind$$$

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Old 08-27-2010, 05:45 PM   #3
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well the ticking noise on my 01 that got louder and louder that was in the vicinity of the transmission, had nothing to do with the transmission or the motor. the exhaust manifold was cracked.
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Old 08-28-2010, 02:13 AM   #4
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Stopped by a trans shop and he couldn't find problem in inspection. He agreed sound coming from transmission area, said he'd recommend dropping the pan and servicing it, then see if anything else is up.
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Old 08-28-2010, 10:46 AM   #5
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Go to a different mechanic, a regular mechanic shop...forget about that tranny guy. He wants to drop the pan and service it?? Why, so he can make $100 of you.

If a mechanic tells you "Im not sure what it is, lets try this and see what happens"..go somewhere else.
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Old 08-30-2010, 10:26 AM   #6
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Yeah, that's my plan today. In regard to checking tranny, my uncle says to just ck dipstick and see what color it is, if it's not brown and burnt smelling, probably ok. Sound right? May be something wrong in tranny, but dropping the pan won't tell me anything.
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Old 09-02-2010, 12:42 AM   #7
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swomprat, how do you determine that? It's nearly impossible to hear where it's coming from. Starting to bother me, not to mention, does that lead to any other problems?
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Old 09-12-2010, 07:47 PM   #8
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crawl under it with a flash light and look at it. it is most likely on the motor side so let i cool down so you can touch it and feel. or you cand go to the parts house get a $10 exhaust manifold gasket set and take it off and you will get the best look at it.
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Old 09-12-2010, 08:07 PM   #9
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A ticking sound can actually be a spun bearing on the engine, mostly noticeable at idle. It's occurred on models only 2 yrs old.
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Old 09-14-2010, 12:57 AM   #10
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Update

My last visit to a local mechanic came up with a bad cat He crawled under with the stethoscope and had me do the same. One of the cats sounds like a ball bearing rolling around. He said they rarely go bad but couldn't locate a source anywhere else. His last words were, "don't worry about"

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